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v3.19.3.a.u2

Stockholders' Equity - Additional Information (Details) $ / shares in Units, $ in Thousands | 12 Months Ended |
--- | --- | ---
Sep. 30, 2019 USD ($) $ / shares shares | Sep. 30, 2018 USD ($) $ / shares shares | Jan. 07, 2014 shares
Class Of Stock [Line Items] |  |  |
Accrued dividends | $ | $ 1 | $ 1 |
Treasury stock purchased, shares | 119,238 | 46,632 |
Payment for treasury stock | $ | $ 888 | $ 550 |
Treasury stock, shares | 262,177 | 142,939 |
Treasury stock, common shares, cost | $ | $ 2,438 | $ 1,550 |
2014 Omnibus Equity Incentive Plan |  |  |
Class Of Stock [Line Items] |  |  |
Common stock reserved for issuance |  |  | 300,000
Common Stock |  |  |
Class Of Stock [Line Items] |  |  |
Shares issued during period | 0 | 0 |
Series B Convertible Preferred Stock |  |  |
Class Of Stock [Line Items] |  |  |
Dividends declared per share by board of directors | $ / shares | $ 1.00 |  |
Stockholders' equity, conversion ratio | 5 |  |
Shares issued during period | 0 | 0 |
Preferred stock, issued | 214,244 | 214,244 |
Preferred stock, outstanding | 214,244 | 214,244 |
Series E Convertible Preferred Stock |  |  |
Class Of Stock [Line Items] |  |  |
Preferred stock, issued | 77,840 | 77,840 |
Preferred stock, outstanding | 77,840 | 77,840 |
Preferred stock, dividend rate | 5.00% |  |
Preferred stock, liquidation preference per share | $ / shares | $ 0.30 | $ 0.30 |
Preferred stock conversion ratio | 0.005 |  |
Preferred stock, conversion price per share | $ / shares | $ 85.50 |  |
Accrued dividends | $ | $ 1 | $ 1 |

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