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COMMON STOCK AND STOCK INCENTIVE PLANS (Summary of Significant Ranges of Outstanding and Exercisable Stock Options) (Details) (USD $) | 12 Months Ended
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Dec. 31, 2014
Stock Options Outstanding |
Number outstanding (in shares) | 558,215 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
Weighted-average remaining contractual life | 4 years 6 months 11 days
Weighted-average exercise price per share (in dollars per share) | $ 6.33 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1
Stock Options Exercisable |
Number Exercisable (in shares) | 327,103 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions
Weighted-average exercise price per share (in dollars per share) | $ 8.68 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1
Options exercisable and expected to vest at the end of the period |
Number of options exercisable (in shares) | 327,103 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
Weighted-average exercise price per share of options exercisable (in dollars per share) | $ 8.68 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice
Number of options expected to vest (in shares) | 500,275 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber
Weighted-average exercise price per share of options expected to vest (in dollars per share) | $ 6.71 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice
$ 2.70 - $ 2.70 [Member] |
COMMON STOCK AND STOCK INCENTIVE PLANS [Line Items] |
Exercise price, low end of range (in dollars per share) | $ 2.70 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars2.70To2.70Member
Exercise price, high end of range (in dollars per share) | $ 2.70 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars2.70To2.70Member
Stock Options Outstanding |
Number outstanding (in shares) | 26,666 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars2.70To2.70Member
Weighted-average remaining contractual life | 9 years 10 months 28 days
Weighted-average exercise price per share (in dollars per share) | $ 2.70 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1 / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars2.70To2.70Member
Stock Options Exercisable |
Number Exercisable (in shares) | 0 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars2.70To2.70Member
Weighted-average exercise price per share (in dollars per share) |
$ 2.87 - $ 2.87 [Member] |
COMMON STOCK AND STOCK INCENTIVE PLANS [Line Items] |
Exercise price, low end of range (in dollars per share) | $ 2.87 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars2.87To2.87Member
Exercise price, high end of range (in dollars per share) | $ 2.87 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars2.87To2.87Member
Stock Options Outstanding |
Number outstanding (in shares) | 100,000 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars2.87To2.87Member
Weighted-average remaining contractual life | 9 years 7 months 20 days
Weighted-average exercise price per share (in dollars per share) | $ 2.87 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1 / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars2.87To2.87Member
Stock Options Exercisable |
Number Exercisable (in shares) | 0 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars2.87To2.87Member
Weighted-average exercise price per share (in dollars per share) |
$ 2.97 - $ 2.97 [Member] |
COMMON STOCK AND STOCK INCENTIVE PLANS [Line Items] |
Exercise price, low end of range (in dollars per share) | $ 2.97 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars2.97To2.97Member
Exercise price, high end of range (in dollars per share) | $ 2.97 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars2.97To2.97Member
Stock Options Outstanding |
Number outstanding (in shares) | 26,666 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars2.97To2.97Member
Weighted-average remaining contractual life | 4 years 9 months 29 days
Weighted-average exercise price per share (in dollars per share) | $ 2.97 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1 / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars2.97To2.97Member
Stock Options Exercisable |
Number Exercisable (in shares) | 13,332 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars2.97To2.97Member
Weighted-average exercise price per share (in dollars per share) | $ 2.97 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars2.97To2.97Member
$ 3.21 - $ 3.21 [Member] |
COMMON STOCK AND STOCK INCENTIVE PLANS [Line Items] |
Exercise price, low end of range (in dollars per share) | $ 3.21 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars3.21To3.21Member
Exercise price, high end of range (in dollars per share) | $ 3.21 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars3.21To3.21Member
Stock Options Outstanding |
Number outstanding (in shares) | 191,054 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars3.21To3.21Member
Weighted-average remaining contractual life | 4 years 5 months 26 days
Weighted-average exercise price per share (in dollars per share) | $ 3.21 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1 / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars3.21To3.21Member
Stock Options Exercisable |
Number Exercisable (in shares) | 104,386 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars3.21To3.21Member
Weighted-average exercise price per share (in dollars per share) | $ 3.21 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars3.21To3.21Member
$ 4.17 - $ 6.51 [Member] |
COMMON STOCK AND STOCK INCENTIVE PLANS [Line Items] |
Exercise price, low end of range (in dollars per share) | $ 4.17 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars4.17To6.51Member
Exercise price, high end of range (in dollars per share) | $ 6.51 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars4.17To6.51Member
Stock Options Outstanding |
Number outstanding (in shares) | 88,236 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars4.17To6.51Member
Weighted-average remaining contractual life | 2 years 2 months 19 days
Weighted-average exercise price per share (in dollars per share) | $ 5.28 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1 / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars4.17To6.51Member
Stock Options Exercisable |
Number Exercisable (in shares) | 83,792 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars4.17To6.51Member
Weighted-average exercise price per share (in dollars per share) | $ 5.34 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars4.17To6.51Member
$ 8.46 - $ 9.72 [Member] |
COMMON STOCK AND STOCK INCENTIVE PLANS [Line Items] |
Exercise price, low end of range (in dollars per share) | $ 8.46 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars8.46To9.72Member
Exercise price, high end of range (in dollars per share) | $ 9.72 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars8.46To9.72Member
Stock Options Outstanding |
Number outstanding (in shares) | 40,325 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars8.46To9.72Member
Weighted-average remaining contractual life | 6 months 14 days
Weighted-average exercise price per share (in dollars per share) | $ 9.53 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1 / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars8.46To9.72Member
Stock Options Exercisable |
Number Exercisable (in shares) | 40,325 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars8.46To9.72Member
Weighted-average exercise price per share (in dollars per share) | $ 9.53 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars8.46To9.72Member
$18.75 - $18.75 [Member] |
COMMON STOCK AND STOCK INCENTIVE PLANS [Line Items] |
Exercise price, low end of range (in dollars per share) | $ 18.75 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars18.75To18.75Member
Exercise price, high end of range (in dollars per share) | $ 18.75 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars18.75To18.75Member
Stock Options Outstanding |
Number outstanding (in shares) | 78,636 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars18.75To18.75Member
Weighted-average remaining contractual life | 1 year 1 month 17 days
Weighted-average exercise price per share (in dollars per share) | $ 18.75 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1 / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars18.75To18.75Member
Stock Options Exercisable |
Number Exercisable (in shares) | 78,636 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars18.75To18.75Member
Weighted-average exercise price per share (in dollars per share) | $ 18.75 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars18.75To18.75Member
$ 19.83 - $ 24.57 [Member] |
COMMON STOCK AND STOCK INCENTIVE PLANS [Line Items] |
Exercise price, low end of range (in dollars per share) | $ 19.83 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars19.83To24.57Member
Exercise price, high end of range (in dollars per share) | $ 24.57 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars19.83To24.57Member
Stock Options Outstanding |
Number outstanding (in shares) | 4,786 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars19.83To24.57Member
Weighted-average remaining contractual life | 8 months 8 days
Weighted-average exercise price per share (in dollars per share) | $ 20.60 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1 / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars19.83To24.57Member
Stock Options Exercisable |
Number Exercisable (in shares) | 4,786 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars19.83To24.57Member
Weighted-average exercise price per share (in dollars per share) | $ 20.60 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars19.83To24.57Member
$ 26.61 - $ 26.61 [Member] |
COMMON STOCK AND STOCK INCENTIVE PLANS [Line Items] |
Exercise price, low end of range (in dollars per share) | $ 26.61 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars26.61To26.61Member
Exercise price, high end of range (in dollars per share) | $ 26.61 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars26.61To26.61Member
Stock Options Outstanding |
Number outstanding (in shares) | 116 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars26.61To26.61Member
Weighted-average remaining contractual life | 11 months 1 day
Weighted-average exercise price per share (in dollars per share) | $ 26.61 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1 / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars26.61To26.61Member
Stock Options Exercisable |
Number Exercisable (in shares) | 116 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars26.61To26.61Member
Weighted-average exercise price per share (in dollars per share) | $ 26.61 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars26.61To26.61Member
$ 33.21 - $ 33.21 [Member] |
COMMON STOCK AND STOCK INCENTIVE PLANS [Line Items] |
Exercise price, low end of range (in dollars per share) | $ 33.21 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars33.21To33.21Member
Exercise price, high end of range (in dollars per share) | $ 33.21 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars33.21To33.21Member
Stock Options Outstanding |
Number outstanding (in shares) | 1,730 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars33.21To33.21Member
Weighted-average remaining contractual life | 3 months
Weighted-average exercise price per share (in dollars per share) | $ 33.21 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1 / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars33.21To33.21Member
Stock Options Exercisable |
Number Exercisable (in shares) | 1,730 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars33.21To33.21Member
Weighted-average exercise price per share (in dollars per share) | $ 33.21 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis = utsi_ExercisePriceRangeFromDollars33.21To33.21Member

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition As of the balance sheet date, the weighted-average exercise price (at which grantees can acquire the shares reserved for issuance) for exercisable stock options that are fully vested or expected to vest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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