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Common Stock Incentive, Stock Purchase Plans and Other Compensation Plans - Narrative (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 6 Months Ended | 25 Months Ended |
--- | --- | --- | --- | --- | ---
Dec. 31, 2016 | Aug. 31, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2016 | Dec. 13, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Aggregate intrinsic value of options exercisable | $ 1,400,000 |  | $ 1,400,000 |  | $ 1,400,000 |  | $ 1,400,000 |
Remaining share-based compensation expense | 85,000 |  | 85,000 |  | $ 85,000 |  | 85,000 |
Weighted average recognition period on remaining share-based compensation expense |  |  |  |  | 1 year 3 months 7 days |  |  |
Common stock repurchased - value |  |  |  |  | $ 1,283,000 |  |  |
Employee Stock Option |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Compensation costs recognized related to stock options |  |  | 18,000 | $ 17,000 | $ 37,000 | $ 71,000 |  |
Restricted Stock |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Weighted average recognition period on remaining share-based compensation expense |  |  |  |  | 1 year 8 months 22 days |  |  |
Compensation costs recognized related to stock options |  |  | 74,000 | $ 89,000 | $ 917,000 | $ 178,000 |  |
Remaining share-based compensation expense | $ 447,000 |  | $ 447,000 |  | $ 447,000 |  | $ 447,000 |
Securities Repurchase Program |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Common stock repurchase - authorized amount |  |  |  |  |  |  |  | $ 5,000,000
Share repurchases (in shares) | 601,852 | 192,000 |  |  | 0 |  | 188,635 |
Common stock repurchased - value | $ 975,000 | $ 308,000 |  |  |  |  | $ 492,000 |
Share repurchased, average cost (in dollars per share) | $ 1.62 | $ 1.60 |  |  |  |  | $ 2.61 |

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation. + References No definition available. + Details
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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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