Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands |
Dec. 31, 2019 |
Sep. 30, 2019 |
| Financing receivables, current, net of allowances of $526, respectively |
$ 526
|
$ 526
|
| Accounts receivable, allowances |
$ 526
|
$ 524
|
| Preferred stock, par value (usd per share) |
$ 0.01
|
$ 0.01
|
| Preferred stock, shares authorized (in shares) |
500,000
|
500,000
|
| Preferred stock, issued (in shares) |
0
|
0
|
| Common stock, par value (usd per share) |
$ 0.01
|
$ 0.01
|
| Common stock, shares authorized (in shares) |
10,000,000
|
10,000,000
|
| Common stock, shares issued (in shares) |
5,283,141
|
5,119,400
|
| Common stock, shares outstanding (in shares) |
5,270,425
|
5,100,684
|
| Treasury stock, shares (in shares) |
12,716
|
12,716
|
| 9% Preferred Stock, Series A, Voting, Cumulative, Convertible |
|
|
| Preferred stock, par value (usd per share) |
$ 0.01
|
$ 0.01
|
| Preferred stock, shares authorized (in shares) |
4,500
|
4,500
|
| Preferred stock, issued (in shares) |
2,012
|
2,678
|
| Preferred stock, dividend rate (usd per share) |
9.00%
|
9.00%
|
| 5% Preferred Stock, Series B, Voting, Cumulative, Convertible |
|
|
| Preferred stock liquidation preference, par value (usd per share) |
$ 0.01
|
$ 0.01
|
| Preferred stock, shares authorized (in shares) |
1,000,000
|
1,000,000
|
| Preferred stock, issued (in shares) |
0
|
0
|
| Preferred stock, dividend rate (usd per share) |
5.00%
|
5.00%
|