XML 68 R55.htm IDEA: XBRL DOCUMENT

Stock Incentive Plans (Details Textual) - USD ($)	1 Months Ended	12 Months Ended
Stock Incentive Plans (Details Textual) - USD ($)	Aug. 31, 2007	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value of the options vested		$ 614,000	$ 928,000
Stock compensation expense		277,000	527,000
Unrecognized compensation cost		$ 177,000
Stock-based plan expect to recognize weighted-average period		1 year 11 months 1 day
Stock compensation expense related to restricted stock		$ 160,000	559,000
2007 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares awarded or sold	440,769
Plan expiration date	Jun. 24, 2016
2016 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Plan expiration date		Mar. 17, 2026
Common stock reserved for future issuance of awards		222,980
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation expense		$ 460,000	$ 262,000
Unrecognized compensation cost		$ 71,000
Stock-based plan expect to recognize weighted-average period		4 months 28 days
Closing price of common stock		$ 5.50
Number of restricted stock units granted		15,000
Restricted Stock Units [Member] \| Key Executive [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Closing price of common stock		$ 6.30
Number of restricted stock units granted		59,098
Grant date fair value of restricted stock units		$ 322,623
Fair value of restricted stock units, description		The daily expected stock price volatility is based on a four-year historical volatility of the Company’s common stock. The daily-expected dividend yield is based on annual expected dividend payments. The average daily risk-free interest rate is based on the three-year treasury yield as of the grant date. Each of the tranches is calculated to have its own fair value and requisite service period. The fair value of each tranche is amortized over the requisite or derived service period, which is up to four years.