Investments - Available-for-sale Securities (FY) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	$ 125,274	$ 127,119	$ 150,732
Debt securities, Gross Unrealized Gain	1	1	898
Debt securities, Gross Unrealized Losses	(14,642)	(16,919)	(1,847)
Debt securities, Estimated Fair Value	110,633	110,201	149,783
U.S. Government
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	7,220	7,833	20,723
Debt securities, Gross Unrealized Gain	0	0	74
Debt securities, Gross Unrealized Losses	(249)	(335)	(77)
Debt securities, Estimated Fair Value	6,971	7,498	20,720
State and local government
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	26,063	25,487	30,063
Debt securities, Gross Unrealized Gain	1	1	555
Debt securities, Gross Unrealized Losses	(3,866)	(4,672)	(189)
Debt securities, Estimated Fair Value	22,198	20,816	30,429
Corporate debt
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	35,070	35,347	30,808
Debt securities, Gross Unrealized Gain	0	0	88
Debt securities, Gross Unrealized Losses	(4,139)	(4,788)	(550)
Debt securities, Estimated Fair Value	30,931	30,559	30,346
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	21,150	21,742	28,652
Debt securities, Gross Unrealized Gain	0	0	10
Debt securities, Gross Unrealized Losses	(1,045)	(1,246)	(224)
Debt securities, Estimated Fair Value	20,105	20,496	28,438
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	28,524	29,194	33,178
Debt securities, Gross Unrealized Gain	0	0	105
Debt securities, Gross Unrealized Losses	(4,739)	(5,157)	(762)
Debt securities, Estimated Fair Value	23,785	24,037	32,521
Commercial mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	3,413	3,414	1,659
Debt securities, Gross Unrealized Gain	0	0	31
Debt securities, Gross Unrealized Losses	(125)	(186)	0
Debt securities, Estimated Fair Value	3,288	3,228	1,690
Collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Debt securities, Cost or Amortized Cost	3,834	4,102	5,649
Debt securities, Gross Unrealized Gain	0	0	35
Debt securities, Gross Unrealized Losses	(479)	(535)	(45)
Debt securities, Estimated Fair Value	$ 3,355	$ 3,567	$ 5,639

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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