Stockholders' Equity (Narrative) (Details) (USD $)	1 Months Ended	3 Months Ended	0 Months Ended
	May 31, 2014	Mar. 31, 2015 item	Jun. 10, 2014	Jun. 05, 2013	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Votes per share		1
Dividends declared		$ 0
Dividends paid		0
Aggregate authorized offering price	18,000,000
Private placement, commission percentage	3.00%
Stock issued, shares		311,222
Average share price of shares sold in private placement		$ 2.02
Proceeds from issuance of private placement, gross		629,505
Net proceeds from sale of securities		610,620
Remaining authorized private placement, value		14,200,000
2012 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase in number of shares authorized for issuance under the Plan			1,000,000	1,000,000
Remaining shares of Company's common stock to provide for current and future grants under its various equity plans		836,839
Total compensation cost not yet recognized related to options, stock appreciation rights and non-vested stock granted to employees		2,200,000
Estimated forfeitures		$ 1,500,000
Total compensation cost not yet recognized related to options, stock appreciation rights and non-vested stock granted to employees, period of amortization, in years		4 years
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares		799,601			697,751
Restricted Shares [Member] | 2012 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares		0