CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	10 Months Ended	12 Months Ended
	Nov. 09, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash Flows From Operating Activities:
Net income (loss)		$ (5,578,000)	$ (2,869,000)	$ (6,557,000)
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization		277,000	284,000	267,000
Gain on the disposition of business sold to former affiliate		0	0	(1,820,000)
Equity in (earnings) of former affiliate		0	(671,000)	(67,000)
Loss on sale of investment in former affiliate		0	448,000	0
Non-cash interest on receivable from former affiliate		(207,000)	0	0
Loss on disposal of fixed assets		89,000	0	0
Expenses paid by former shareholder		2,206,000	0	0
Amortization of discount on receivable from former affiliate		0	(235,000)	(37,000)
Accrued interest on note receivable from former affiliate		(322,000)	(46,000)	0
Distributions from former affiliate		0	98,000	13,000
Changes in:
Cash equivalent - restricted		0	1,532,000	0
Securities owned, at fair value		501,000	(105,000)	(82,000)
Receivable from former affiliate investee equity interest		0	0	(76,000)
Receivable from clearing and other brokers		20,000	162,000	317,000
Prepaid expenses and other assets		292,000	84,000	33,000
Accounts payable and accrued liabilities		(539,000)	(74,000)	(685,000)
Net cash (used in) /provided by operating activities		(3,261,000)	(1,392,000)	(8,694,000)
Cash Flows From Investing Activities:
Purchase of furniture, equipment and leasehold improvements		(38,000)	(41,000)	(154,000)
Distributions from equity investees		0	0	173,000
Payment received from business sold to former affiliate		493,000	0	0
Proceeds from sale of investment in former affiliate		0	4,000,000	0
Collection of advances to former affiliate		0	104,000	0
Net cash provided by/ (used in) investing activities		455,000	4,063,000	19,000
Cash Flows From Financing Activities:
Cash dividend		(4,494,000)	0	0
Contribution from principal stockholder		610,000	0	0
Net cash (used in) provided by financing activities		(3,884,000)	0	0
Net (decrease) increase in cash and cash equivalents		(6,690,000)	2,671,000	(8,675,000)
Cash and cash equivalents - beginning of period	$ 6,749,000	9,420,000	6,749,000	15,424,000
Cash and cash equivalents - end of period		2,730,000	9,420,000	6,749,000
Supplemental cash flow disclosure Non-cash investing activity:
Note received on sale of investment in former affiliate		0	4,000,000	0
Cancellation of treasury shares		4,760,000	0	0
Non-cash dividend (transferred receivable and note) to principal shareholder		$ 6,174,000	0	0
SIEBERT, BRANDFORD, SHANK FINANCIAL, LLC AND SUBSIDIARY
Cash Flows From Operating Activities:
Net income (loss)	1,369,369			170,747
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization	408,577			267,973
Amortization of discount on receivable from former affiliate	194,581			36,641
Changes in:
Accounts receivable	(750,051)			(1,031,467)
Due to/from broker	9,410,526			(2,514,399)
Securities owned, at fair value	(8,603,054)			0
Other assets	(28,001)			(54,533)
Payable to (receivable from) affiliates	(52,898)			76,056
Bank overdraft	0			(1,225,779)
Deferred rent	(95,936)			(72,788)
Accounts payable and accrued liabilities	1,699,037			741,040
Net cash (used in) /provided by operating activities	3,552,150			(3,606,509)
Cash Flows From Investing Activities:
Purchase of furniture, equipment and leasehold improvements	(41,746)			(89,364)
Net cash provided by/ (used in) investing activities	(41,746)			(89,364)
Cash Flows From Financing Activities:
Distributions to members	(200,000)			(26,472)
Subordinated borrowings	0			9,000,000
Subordinated repayments	(4,000,000)			(5,000,000)
Net cash (used in) provided by financing activities	(4,200,000)			3,973,528
Net (decrease) increase in cash and cash equivalents	(689,596)			277,655
Cash and cash equivalents - beginning of period	20,065,062		$ 20,065,062	19,787,407
Cash and cash equivalents - end of period	19,375,466			20,065,062
Supplemental Cash Flow Disclosures:
Cash for: Income taxes paid, net	39,068			24,323
Interest paid	46,176			100,295
Supplemental cash flow disclosure Non-cash investing activity:
Note payable for purchase of business from affiliate	0			1,820,000
Intangible assets acquired related to business acquired from affiliate issuer relationships	0			(819,000)
Goodwill	0			(1,001,000)
Repayment of subordinated borrowing from former affiliate by cancellation of related secured demand note receivable from former affiliate	$ 1,200,000			$ 0