XML 39 R19.htm IDEA: XBRL DOCUMENT
v2.4.1.9

INCENTIVE PLANS (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2014
INCENTIVE PLANS |
Summary of assumptions used under stock options activity |
|  | 2013
Expected volatility |  | 49.67% - 53.06%
Expected dividends |  | None
Expected term (in years) |  | 5.5 - 7
Risk-free rate |  | 1.43% - 1.50%
Summary of option activity | .
|  | Options |  | Weighted- Average Exercise Price Per Share |  | Weighted- Average Remaining Contractual Term (in years) |  | Aggregate Intrinsic Value |
Outstanding—January 1, 2014 |  |  | 216,000 |  | $ | 6.46 |  |  |  |  |  |  |
Granted |  |  | — |  |  | — |  |  |  |  |  |  |
Cancelled |  |  | (35,000 | ) |  | 6.99 |  |  |  |  |  |  |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Outstanding—December 31, 2014 |  |  | 181,000 |  | $ | 6.36 |  |  | 2.92 |  | $ | 75,250 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Exercisable on December 31, 2014 |  |  | 163,168 |  | $ | 6.70 |  |  | 2.35 |  | $ | 31,027 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Summary of the liability and changes during the years |
|  | 2014 |  | 2013 |
Beginning Balance |  | $ | 81,000 |  | $ | 101,000 |
Additions |  |  | 178,000 |  |  | 67,000 |
Payments |  |  | — |  |  | (87,000 | )
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Ending Balance |  | $ | 259,000 |  | $ | 81,000 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​

X
- Definition Tabular disclosure of changes in liabilities for stock option plans and other equity-based compensation arrangements. + References No definition available. + Details
Name: | nsys_ScheduleOfAccruedShareBasedCompensationRollforwardTableTextBlock
Namespace Prefix: | nsys_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + 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) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration