Stock-based Compensation Plans, Time Based Awards (Details) | 1 Months Ended | 3 Months Ended | 12 Months Ended |
Aug. 31, 2016USD ($)$ / sharesshares | Feb. 29, 2016USD ($)shares | Dec. 31, 2016USD ($)DirectorTranche$ / sharesshares | Jan. 02, 2016USD ($) | Sep. 30, 2016USD ($)$ / sharesshares |
Stock Option Activity [Roll Forward] | | | | | |
Outstanding shares, exercised (in shares) | | | 0 | | |
Stock Options [Member] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | |
Number of tranches | Tranche | | | 2 | | |
Estimated fair value of stock at date of grant | $ | $ 211,000 | | | | |
Share based compensation expense | $ | | | $ 30,584 | $ 0 | |
Vested options exercisable (in shares) | | | 12,165 | | |
Period for vested options exercisable | | | 3 months | | |
Number of Shares of Stock Options [Roll Forward] | | | | | |
Non-vested balance, beginning of period (in shares) | | | 50,625 | | |
Non-vested balance, end of period (in shares) | | | 50,625 | | 50,625 |
Weighted Average Grant-Date Fair Value [Abstract] | | | | | |
Non-vested balance, beginning of period (in dollars per share) | $ / shares | | | $ 4.67 | | |
Non-vested balance, ending of period (in dollars per share) | $ / shares | | | $ 4.67 | | $ 4.67 |
Stock Options [Member] | First Tranche [Member] | | | | | |
Stock Option Activity [Roll Forward] | | | | | |
Outstanding shares, granted (in shares) | 36,496 | | | | |
Weighted Average Exercise Price [Abstract] | | | | | |
Weighted average exercise price, exercised (in dollars per share) | $ / shares | $ 10.93 | | | | |
Stock Options [Member] | Second Tranche [Member] | | | | | |
Stock Option Activity [Roll Forward] | | | | | |
Outstanding shares, granted (in shares) | 20,204 | | | | |
Weighted Average Exercise Price [Abstract] | | | | | |
Weighted average exercise price, exercised (in dollars per share) | $ / shares | $ 12.35 | | | | |
Stock Options [Member] | Executive Chairman [Member] | | | | | |
Stock Option Activity [Roll Forward] | | | | | |
Outstanding shares, granted (in shares) | 56,700 | | | | |
Time Based Awards [Member] | | | | | |
Stock Option Activity [Roll Forward] | | | | | |
Outstanding shares, beginning balance (in shares) | | | 12,165 | | |
Outstanding shares, granted (in shares) | | | 0 | | |
Outstanding shares, exercised (in shares) | | | 0 | | |
Outstanding shares, forfeited or expired (in shares) | | | 0 | | |
Outstanding shares, ending balance (in shares) | | | 12,165 | | 12,165 |
Outstanding shares, exercisable (in shares) | | | 0 | | |
Outstanding shares, vested (in shares) | | | 12,165 | | |
Weighted Average Exercise Price [Abstract] | | | | | |
Weighted average exercise price, beginning balance (in dollars per share) | $ / shares | | | $ 10.93 | | |
Weighted average exercise price, granted (in dollars per share) | $ / shares | | | 0 | | |
Weighted average exercise price, exercised (in dollars per share) | $ / shares | | | 0 | | |
Weighted average exercise price, forfeited or expired (in dollars per share) | $ / shares | | | 0 | | |
Weighted average exercise price, ending balance (in dollars per share) | $ / shares | | | 10.93 | | $ 10.93 |
Weighted average exercise price, exercisable (in dollars per share) | $ / shares | | | 0 | | |
Weighted average exercise price, vested (in dollars per share) | $ / shares | | | $ 10.93 | | |
Weighted Average Remaining Contractual Term (Years) [Abstract] | | | | | |
Weighted average remaining contractual term | | | 3 years 8 months 1 day | | 4 years 29 days |
Weighted average remaining contractual term, granted | | | 0 years | | |
Weighted average remaining contractual term, exercised | | | 0 years | | |
Weighted average remaining contractual term, forfeited or expired | | | 0 years | | |
Weighted average remaining contractual term, exercisable | | | 0 years | | |
Weighted average remaining contractual term, vested | | | 3 years 8 months 1 day | | |
Aggregate Intrinsic Value [Abstract] | | | | | |
Aggregate intrinsic value, beginning balance | $ | | | $ 0 | | |
Aggregate intrinsic value, granted | $ | | | 0 | | |
Aggregate intrinsic value, exercised | $ | | | 0 | | |
Aggregate intrinsic value, forfeited or expired | $ | | | 0 | | |
Aggregate intrinsic value, ending balance | $ | | | 0 | | $ 0 |
Aggregate intrinsic value, exercisable | $ | | | 0 | | |
Aggregate intrinsic value, vested | $ | | | $ 0 | | |
Restricted Stock [Member] | | | | | |
Number of shares of Restricted Stock [Roll Forward] | | | | | |
Non-vested balance, beginning of period (in shares) | | | 138,940 | | |
Vested (in shares) | | | (60,000) | | |
Non-vested balance, end of period (in shares) | | | 78,940 | | 138,940 |
Weighted Average Grant-Date Fair Value [Roll Forward] | | | | | |
Non-vested balance, beginning of period (in dollars per share) | $ / shares | | | $ 6.50 | | |
Vested (in dollars per share) | $ / shares | | | 6.39 | | |
Non-vested balance, ending of period (in dollars per share) | $ / shares | | | $ 6.58 | | $ 6.50 |
Restricted Stock [Member] | Nine Non-Employees [Member] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | |
Number of employees directors with restricted stock grant | Director | | | 9 | | |
Estimated fair value of stock at date of grant | $ | | $ 292,000 | | | |
Period for recognition of unearned compensation | | | 12 months | | |
Number of shares of cancelled (in shares) | | (3,300) | | | |
Share based compensation expense | $ | | | $ 64,812 | $ 0 | |
Stock Option Activity [Roll Forward] | | | | | |
Outstanding shares, granted (in shares) | | 29,700 | | | |