Shareholders' Equity (Details) | 6 Months Ended | 12 Months Ended |
Sep. 30, 2015USD ($)Plan$ / sharesshares | Sep. 30, 2014USD ($)$ / shares | Mar. 31, 2015USD ($)$ / sharesshares |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | |
Share-based compensation expense | $ | $ 640,000 | $ 661,000 | |
Restricted shares and warrants, additional disclosures [Abstract] | | | |
Warrants issued to purchase common stock (in shares) | shares | 376,123 | | |
Warrants exercise price (in dollars per share) | $ 9.31 | | |
Recorded expenses | $ | $ 105,770 | $ 0 | |
Stock Options [Member] | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | |
Unrecognized share-based compensation expense | $ | $ 844,000 | | |
Unrecognized compensation expense, weighted average period of recognition | 1 year 7 months 13 days | | |
Weighted-average assumptions used to value the options granted [Abstract] | | | |
Expected life in years | 3 years 10 months 2 days | 2 years 9 months 22 days | |
Risk-free interest rate | 1.10% | 1.00% | |
Expected volatility | 63.94% | 66.41% | |
Expected dividend yield | 0.00% | 0.00% | |
Weighted-average grant date fair value (in dollars per share) | $ 0.79 | $ 1.21 | |
Stock options, number of shares [Roll Forward] | | | |
Outstanding, beginning of period (in shares) | shares | 2,251,085 | | |
Options granted (in shares) | shares | 617,914 | | |
Options exercised (in shares) | shares | 0 | | |
Options surrendered (in shares) | shares | (170,605) | | |
Outstanding, end of period (in shares) | shares | 2,698,394 | | 2,251,085 |
Exercisable, end of period (in shares) | shares | 1,817,279 | | |
Stock options, weighted average exercise price [Roll Forward] | | | |
Outstanding, beginning of period (in dollars per share) | $ 5.32 | | |
Options granted (in dollars per share) | 1.64 | | |
Options exercised (in dollars per share) | 0 | | |
Options surrendered (in dollars per share) | 5.46 | | |
Outstanding, end of period (in dollars per share) | 4.47 | | $ 5.32 |
Exercisable, end of period (in dollars per share) | $ 5.51 | | |
Stock options, additional disclosures [Abstract] | | | |
Outstanding, weighted average remaining life in years | 5 years 3 months 4 days | | 5 years 22 days |
Options exercisable, Weighted average remaining life in years | 3 years 10 months 28 days | | |
Outstanding, aggregate intrinsic value, end of period | $ | $ 0 | | $ 0 |
Exercisable, aggregate intrinsic value, end of period | $ | 0 | | |
Fair value of stock options vested | $ | $ 503,000 | $ 620,000 | |
Stock Options [Member] | Executive Employees and Directors [Member] | | | |
Weighted-average assumptions used to value the options granted [Abstract] | | | |
Forfeiture rate | 10.00% | | |
Stock Options [Member] | Non-Executive Employees [Member] | | | |
Weighted-average assumptions used to value the options granted [Abstract] | | | |
Forfeiture rate | 15.00% | | |
Restricted Stock [Member] | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | |
Unrecognized share-based compensation expense | $ | $ 1,415,000 | | |
Unrecognized compensation expense, weighted average period of recognition | 1 year 9 months 18 days | | |
Restricted shares and warrants, number of shares [Roll Forward] | | | |
Balance, beginning of period (in shares) | shares | 317,741 | | |
Shares granted (in shares) | shares | 513,299 | | |
Shares vested (in shares) | shares | (121,445) | | |
Shares forfeited (in shares) | shares | (20,869) | | |
Balance, end of period (in shares) | shares | 688,726 | | 317,741 |
Restricted shares, weighted average grant date fair value [Roll Forward] | | | |
Balance, beginning of period (in dollars per share) | $ 4.47 | | |
Shares granted (in dollars per share) | 1.62 | | |
Shares vested (in dollars per share) | 4.42 | | |
Shares forfeited (in dollars per share) | 2.66 | | |
Balance, end of period (in dollars per share) | $ 2.41 | | $ 4.47 |
Restricted shares and warrants, additional disclosures [Abstract] | | | |
Weighted average remaining life in years | 1 year 9 months 18 days | | 1 year 11 months 5 days |
Balance, end of period | $ | $ 854,020 | | $ 387,644 |
Performance Award [Member] | | | |
Restricted shares and warrants, additional disclosures [Abstract] | | | |
First stock price target of common stock (in dollars per share) | $ 7.57 | | |
Second stock price target of common stock (in dollars per share) | 10.32 | | |
Third stock price target of common stock (in dollars per share) | $ 13.76 | | |
Number of consecutive trading days | 45 days | | |
Award requisite service period | 2 years 4 months 24 days | | |
Recorded liability | $ | $ 47,000 | | |
Recorded expenses | $ | $ (106,000) | | |
2015 Plan [Member] | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | |
Number of active plans for share-based compensation grants | Plan | 1 | | |
Number of shares reserved for share-based grants (in shares) | shares | 2,500,000 | | |
Shares remain available for grant (in shares) | shares | 1,403,734 | | |
2015 Plan [Member] | Stock Options [Member] | Minimum [Member] | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | |
Term of share-based payment award | 5 years | | |
2015 Plan [Member] | Stock Options [Member] | Maximum [Member] | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | |
Term of share-based payment award | 7 years | | |
Vesting period | 3 years | | |