Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ / shares in Thousands	Sep. 30, 2021	Dec. 31, 2020
Unrestricted cash and cash equivalents	$ 166,966,000	$ 178,102,000
Restricted cash and cash equivalents	47,808,000	80,859,000
Loans, interest and fees receivable, at fair value	846,160,000	417,098,000
Loans, interest and fees receivable, gross	511,140,000	667,556,000
Allowances for uncollectible loans, interest and fees receivable	80,029,000	124,961,000
Deferred revenue	29,824,000	39,456,000
Notes payable, at face value	$ 995,322,000	$ 882,610,000
Preferred stock, par value (in dollars per share)	$ 0	$ 0
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, authorized (in shares)	150,000,000	150,000,000
Common stock, issued (in shares)	16,553,615	16,115,353
Common stock, outstanding (in shares)	15,094,382	16,115,353
Own-share lending arrangement, outstanding (in shares)	1,459,233	1,459,233
Treasury stock, shares (in shares)	1,459,233	0
Series A Preferred Stock [Member]
Preferred stock, shares authorized (in shares)	10,000,000,000	10,000,000,000
Preferred stock, shares issued (in shares)		400,000
Preferred stock, shares outstanding (in shares)	400,000	400,000
Preferred stock, liquidation preference	$ 40,000	$ 40,000
Series B Preferred Stock [Member]
Preferred stock, no par value (in dollars per share)	$ 0	$ 0
Preferred stock, shares issued (in shares)	3,188,533	0
Preferred stock, shares outstanding (in shares)	3,188,533	0
Preferred stock, liquidation preference	$ 79,700,000	$ 79,700,000
Variable Interest Entity, Primary Beneficiary [Member]
Unrestricted cash and cash equivalents	93,500,000	96,600,000
Restricted cash and cash equivalents	30,900,000	70,200,000
Loans, interest and fees receivable, at fair value	753,800,000	374,200,000
Loans, interest and fees receivable, gross	404,100,000	560,200,000
Allowances for uncollectible loans, interest and fees receivable	76,800,000	120,900,000
Deferred revenue	7,400,000	10,300,000
Notes payable, at face value	$ 944,500,000	$ 827,100,000